Technology of erection of multi-storey industrial building with precast reinforced concrete frame

Contents

Contents

Source Data

Characteristics of the installed building

Sizing Mounting Grips

Definition of erection quantities

Selection of a set of machines, machinery and equipment

Selection of a set of machines, mechanisms and equipment for zero-cycle operations

List of installation elements and selection of load gripping device for installation, loading and unloading works

Selection of a set of machines, mechanisms and equipment for installation and laying processes according to technical characteristics

Selection of vehicles and calculation of their demand

Design of work flow technology and development of Job Instruction for installation of prefabricated frame elements

Scope of application of task list

Procedure and organization of works performance

General principles of building installation

Installation of columns in foundation sleeves

Installation of columns on downstream columns

Installation of girders

Installation of slabs and slabs

Installation of wall panels

Technology of crossbar joint with column

Determination of standard labor costs and machine operation time

Quality control of construction and installation works

Logistical resources

Occupational Safety Requirements for Workplace Organization

Construction Master Plan

Occupational safety and environmental protection

Bibliographic list

Design of work flow technology and development of Job Instruction for installation of prefabricated frame elements

5.1. Scope of application of task list

The process map was compiled for the installation of prefabricated reinforced concrete products for construction in the city of Kursk. For frame buildings of the 1st degree of fire resistance with a normal humidity mode with a non-aggressive degree of medium exposure. This TC contains instructions on the organization and technology of work on installation of multi-storey industrial buildings with a metal frame, defined the composition of production operations, requirements for quality control and acceptance of work, planned labor intensity of work, labor, production and material resources, measures for industrial safety and labor protection.

The regulatory basis for the development of the task list are:

- typical drawings;

- building codes and regulations (SNiP, SN, SP);

- factory instructions and specifications (TS);

- norms and rates for construction and installation works (GESN2001 ENiR);

- Production material consumption rates (NPRM);

- local progressive norms and rates, labor costs, consumption rates of material and technical resources.

The design weight of the products ranges from 1.6 to 5.8 tons.

5.2. Procedure and organization of works performance

5.2.1. General principles of building installation

During installation of the above-ground part of the building it is necessary to adhere to the following principles:

1. Erection of structures is carried out in tandem. There are two tiers in this building.

2.Your work is performed in four installation cycles:

1 cycle - installation of columns into foundation sleeves;

2 cycle - installation of girders and slabs of the first tier;

3 cycle - installation of columns on the lower columns and installation of girders and coating plates of the second tier;

4 cycle - installation of wall panels .

3.Installation of slabs is carried out strictly sequentially, and first of all, inter-column slabs of the slab are installed.

4. Wall panels are mounted in the last stream, after installation of the entire building.

5. Erection of structures is carried out at two-way operation of two cranes-tower KB-401A and boom SKG40/63.

6. Installation is carried out in-line. After the first cycle, it is necessary to provide a technological break for hardening and gaining the necessary strength of the concrete mixture poured into the foundation sleeves. Such a technological break (when using concrete of class B25) is about 8 days.

7. Installation works are performed from the warehouse.

Reinforced concrete structures entering the construction site shall comply with the requirements of the current construction conditions. The installation solution is used as a delivery solution or is prepared directly at the construction site.

Construction Master Plan

The Construction Master Plan (SGP) is one of the main documents of the Construction Organization Project (PIC) and the PPR Project), regulating the organization of the construction site and the scope of temporary construction.

Construction plans of the facilities are designed for the entire construction period or for certain stages of the work (erection of the underground part of the building, installation of structures, finishing works, etc.).

There are two types of building plans: site-wide and object.

Site-wide SGP covers the entire area of the construction site. It determines the fundamental decision on the organization of the construction economy of the entire site. It is composed of project organizations at the stage of the working project as part of the PIC.

General site SGP is carried out at a stage of the feasibility study (feasibility study) or engineering design as a part of the SETTLEMENT. It is being developed for the construction of a complex of buildings or for individual complex buildings and structures. During one-stage design, the site-wide construction plan is not developed.

In the course project, an object construction plan is developed for the main construction period, usually for the construction of the above-ground part, the construction plan is made at a scale of 1: 500-1: 1000 (depending on the size of the building in the plan).

When designing a construction plan, the following issues are solved in accordance with the recommended sequence:

- establish the boundaries of the construction site with the outlines of the designed buildings and structures;

-Traced tracks for movement of construction machines and crane tracks with indication of crane action zones;

- place the installation points of stationary construction machines and mechanisms (solution units, lifts, cranes, etc.);

- take away areas for storage of building materials;

- designing temporary roads;

- place temporary administrative, sanitary and household premises;

- provide temporary water supply and power supply networks;

- provide safety and fire fighting equipment (fencing of hazardous places, location of fire hydrants, places for smoking, etc.);

The location of temporary structures, warehouses, roads, mechanisms should provide the lowest costs for in-house transportation, ease of work. The number of temporary buildings and structures shall be minimum necessary and appropriately justified. As a rule, temporary structures of inventory design are accepted - prefabricated or mobile (vans).

All temporary buildings, structures, roads, gas and water supply networks, open material warehouses and other temporary devices shall have dimensions in mm in relation to the main building under construction (to its axes), and fire safety standards of construction design shall be taken into account.

All elements of the construction plot plan are drawn in accordance with the symbols given in RD 11062007. The sheet contains accepted symbols and explication of buildings and structures.

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